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Information × Registration Number 0206U000037, 0104U003145 , R & D reports Title Long-life plasma generators design methodology and manufacturing processes development popup.stage_title Head Plankovsky Sergiy, Registration Date 05-01-2006 Organization National Aerospace University named by N.E.Zhukovsky "Kharkov aviation institute" popup.description2 Research subject is electric arc plasma generators with thermal cathodes. The purpose of this work is heavy-duty long-life plasma torches development on the basis of new materials with special properties applications and scientifically justified design methodology. Research methods are integrated methodology of cathode processes research, mathematical simulation methods, numerical methods of connected boundary value problems solution on the basis of finite element method, experimental methods. It is shown, that power and life time of modern industrial electric arc plasma torches are insufficient for broad application of developed plasma technology. It is shown, that hollow cathodes made of high-performance thermal-emission materials are very promising for application in heavy-duty plasma torches. Such application allows changing arc discharge condition from spot discharge to uniformly distributed on the cathode surface. New thermal-emission materials are developed with increased immunity to atmosphericair poisoning and high melting temperature. The criteria for plasma torches design parameters selection are offered on the basis of emission properties of used materials. Mathematical models for solution of different plasma torch design problems are developed. Experimental testbeds for vacuum and atmospheric tests of plasma torches and their systems are created. Capability of high-current long-life electric arc plasma torches development on the basis of offered principles is confirmed experimentally. Product Description popup.authors popup.nrat_date 2020-04-02 Close